SOLID-STATE VIBRATIONAL SPECTRA OF ETHYLENE AND ETHYLENE-D4

Abstract

High resolution infrared spectra have been obtained for polycrystalline C2H4 at 4 K and 53 K and for C2D4 at 53 K. The observed multiplet structure of the fundamental vibrations is in good agreement with the group theoretical predictions. In C2H4 there is evidence for a gradual phase transition between 4 K and 53 K, involving reorientation of the planes of the H atoms of C2H4 molecules in the crystal. The Raman-active fundamentals have been observed, weakly, in thick deposits of C2H4 at 4 K. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 10, 1961
Accession Number
AD0257303

Entities

People

  • Marilyn E. Jacox

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Alkenes
  • Crystals
  • Diffraction
  • Electromagnetic Spectra
  • Ethylenes
  • High Resolution
  • Infrared Spectra
  • Molecules
  • Phase Transformations
  • Polycrystals
  • Spectra
  • Transitions
  • Vibration
  • Vibrational Spectra

Readers

  • Materials Science and Engineering.
  • Molecular Photonics/Laser Physics
  • Organic Chemistry